After Annika, a medical doctor, gets work at the local hospital, she and her 17-year old daughter Saga move to a small town in northern Sweden. Annika is keen to work with her idol, geneticist Professor Gerhard Beckert. However Beckert's sinister past in the Waffen-SS soon catches up with him when a couple of pill-popping interns mistake an experimental vaccine for party drugs. Mayhem ensues as the town's teenagers succumb one by one to the mysterious virus.
| Actor | Role |
|---|---|
 Petra NielsenAnnika | Annika |
| CCarl-Åke ErikssonProfessor Gerhard Beckert | Professor Gerhard Beckert |
 Grete HavnesköldSaga | Saga |
| EEmma ÅbergVega (as Emma T. Åberg) | Vega (as Emma T. Åberg) |
| JJonas LawesRobert | Robert |
| NNiklas GrönbergJohn | John |
| GGustav JohanssonJoel | Joel |
| LLinnea JonssonCissi | Cissi |
 Nour El RefaiCornelia | Cornelia |
| JJonas KarlströmSebastian | Sebastian |
 Måns NathanaelsonLukas | Lukas |
 Mikael TornvingPolice | Police |
| AAnders JohanssonNot listed | Not listed |
| AAurora RoaldNot listed | Not listed |
 Thomas HedengranNot listed | Not listed |